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Three-dimensional numerical simulation of quasi-static pebble flow
Advanced Powder Technology, Volume: 28, Issue: 2, Pages: 499 - 505
Swansea University Author:
Yuntian Feng
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DOI (Published version): 10.1016/j.apt.2016.11.007
Abstract
To investigate the influence of the drainage rate and the particle contact model on the main features of the pebble flow, a quasi-static pebble flow of full scale German HTR-MODUL pebble bed is performed with up to 360,000 frictional graphite spheres. The treatment of the sphere-wall boundary condit...
Published in: | Advanced Powder Technology |
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ISSN: | 0921-8831 |
Published: |
2017
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URI: | https://cronfa.swan.ac.uk/Record/cronfa31108 |
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2017-05-16T13:50:37.5806664 v2 31108 2016-11-16 Three-dimensional numerical simulation of quasi-static pebble flow d66794f9c1357969a5badf654f960275 0000-0002-6396-8698 Yuntian Feng Yuntian Feng true false 2016-11-16 CIVL To investigate the influence of the drainage rate and the particle contact model on the main features of the pebble flow, a quasi-static pebble flow of full scale German HTR-MODUL pebble bed is performed with up to 360,000 frictional graphite spheres. The treatment of the sphere-wall boundary condition is analyzed to avoid underestimating the friction of pebble near the wall. The streamlines, diffusion of pebbles and velocity profiles of pebble flow are drawn and analyzed. It shows that the streamlines and diffusion of pebbles inside the pebble bed are barely affected by the drainage rate and the particle contact model used. However, it reveals that the drainage rate and the contact model obviously influence the pattern of velocity profiles. It demonstrates that the quasi-static pebble flow and the Hertzian model are optimal choices of the neutronic physical design of the pebble bed reactor when the residue time of pebbles is particularly concerned. Journal Article Advanced Powder Technology 28 2 499 505 0921-8831 31 12 2017 2017-12-31 10.1016/j.apt.2016.11.007 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2017-05-16T13:50:37.5806664 2016-11-16T10:20:34.8505691 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering X.M. Sun 1 Y.J. Dong 2 P.F. Hao 3 L. Shi 4 F. Li 5 Y.T. Feng 6 Yuntian Feng 0000-0002-6396-8698 7 0031108-16112016102325.pdf sun2016.pdf 2016-11-16T10:23:25.0030000 Output 981194 application/pdf Accepted Manuscript true 2017-11-24T00:00:00.0000000 false |
title |
Three-dimensional numerical simulation of quasi-static pebble flow |
spellingShingle |
Three-dimensional numerical simulation of quasi-static pebble flow Yuntian Feng |
title_short |
Three-dimensional numerical simulation of quasi-static pebble flow |
title_full |
Three-dimensional numerical simulation of quasi-static pebble flow |
title_fullStr |
Three-dimensional numerical simulation of quasi-static pebble flow |
title_full_unstemmed |
Three-dimensional numerical simulation of quasi-static pebble flow |
title_sort |
Three-dimensional numerical simulation of quasi-static pebble flow |
author_id_str_mv |
d66794f9c1357969a5badf654f960275 |
author_id_fullname_str_mv |
d66794f9c1357969a5badf654f960275_***_Yuntian Feng |
author |
Yuntian Feng |
author2 |
X.M. Sun Y.J. Dong P.F. Hao L. Shi F. Li Y.T. Feng Yuntian Feng |
format |
Journal article |
container_title |
Advanced Powder Technology |
container_volume |
28 |
container_issue |
2 |
container_start_page |
499 |
publishDate |
2017 |
institution |
Swansea University |
issn |
0921-8831 |
doi_str_mv |
10.1016/j.apt.2016.11.007 |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering |
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description |
To investigate the influence of the drainage rate and the particle contact model on the main features of the pebble flow, a quasi-static pebble flow of full scale German HTR-MODUL pebble bed is performed with up to 360,000 frictional graphite spheres. The treatment of the sphere-wall boundary condition is analyzed to avoid underestimating the friction of pebble near the wall. The streamlines, diffusion of pebbles and velocity profiles of pebble flow are drawn and analyzed. It shows that the streamlines and diffusion of pebbles inside the pebble bed are barely affected by the drainage rate and the particle contact model used. However, it reveals that the drainage rate and the contact model obviously influence the pattern of velocity profiles. It demonstrates that the quasi-static pebble flow and the Hertzian model are optimal choices of the neutronic physical design of the pebble bed reactor when the residue time of pebbles is particularly concerned. |
published_date |
2017-12-31T03:37:57Z |
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1763751679845466112 |
score |
11.021648 |